New LiquidCrystal library 1.3.2 Generic LCD control library

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/Users/fmalpartida/Documents/development/mercurial repos/SW/NewliquidCrystal/LiquidCrystal_SI2C.h
1 // ---------------------------------------------------------------------------
2 // Created by Francisco Malpartida on 20/08/11.
3 // Copyright 2011 - Under creative commons license 3.0:
4 // Attribution-ShareAlike CC BY-SA
5 //
6 // This software is furnished "as is", without technical support, and with no
7 // warranty, express or implied, as to its usefulness for any purpose.
8 //
9 // Thread Safe: No
10 // Extendable: Yes
11 //
12 // @file LiquidCrystal_I2C.h
13 // This file implements a basic liquid crystal library that comes as standard
14 // in the Arduino SDK but using an I2C IO extension board and software I2C.
15 // It will use digital pins 6 and 7 for SCL and SDA, but it can be changed
16 // in SI2CIO.cpp to use other pins if needed.
17
18 // @brief
19 // This is a basic implementation of the LiquidCrystal library of the
20 // Arduino SDK. The original library has been reworked in such a way that
21 // this class implements the all methods to command an LCD based
22 // on the Hitachi HD44780 and compatible chipsets using I2C extension
23 // backpacks such as the I2CLCDextraIO with the PCF8574* I2C IO Expander ASIC.
24 //
25 // The functionality provided by this class and its base class is identical
26 // to the original functionality of the Arduino LiquidCrystal library.
27 //
28 //
29 // @author F. Malpartida - fmalpartida@gmail.com
30 // Adapted to SoftIC2 by Adrian Piccioli - adrianpiccioli@gmail.com
31 // ---------------------------------------------------------------------------
32 #ifndef LiquidCrystal_SI2C_h
33 #define LiquidCrystal_SI2C_h
34 #include <inttypes.h>
35 #include <Print.h>
36
37 #include "SI2CIO.h"
38 #include "LCD.h"
39
40
41 class LiquidCrystal_SI2C : public LCD
42 {
43 public:
44
54 LiquidCrystal_SI2C (uint8_t lcd_Addr);
55 // Constructor with backlight control
56 LiquidCrystal_SI2C (uint8_t lcd_Addr, uint8_t backlighPin, t_backlighPol pol);
57
70 LiquidCrystal_SI2C( uint8_t lcd_Addr, uint8_t En, uint8_t Rw, uint8_t Rs);
71 // Constructor with backlight control
72 LiquidCrystal_SI2C(uint8_t lcd_Addr, uint8_t En, uint8_t Rw, uint8_t Rs,
73 uint8_t backlighPin, t_backlighPol pol);
74
91 LiquidCrystal_SI2C(uint8_t lcd_Addr, uint8_t En, uint8_t Rw, uint8_t Rs,
92 uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7 );
93 // Constructor with backlight control
94 LiquidCrystal_SI2C(uint8_t lcd_Addr, uint8_t En, uint8_t Rw, uint8_t Rs,
95 uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7,
96 uint8_t backlighPin, t_backlighPol pol);
113 virtual void begin(uint8_t cols, uint8_t rows, uint8_t charsize = LCD_5x8DOTS);
114
127 virtual void send(uint8_t value, uint8_t mode);
128
137 void setBacklightPin ( uint8_t value, t_backlighPol pol );
138
148 void setBacklight ( uint8_t value );
149
150 private:
151
157 int init();
158
174 void config (uint8_t lcd_Addr, uint8_t En, uint8_t Rw, uint8_t Rs,
175 uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7 );
176
185 void write4bits(uint8_t value, uint8_t mode);
186
193 void pulseEnable(uint8_t);
194
195
196 uint8_t _Addr; // I2C Address of the IO expander
197 uint8_t _backlightPinMask; // Backlight IO pin mask
198 uint8_t _backlightStsMask; // Backlight status mask
199 SI2CIO _i2cio; // I2CIO PCF8574* expansion module driver I2CLCDextraIO
200 uint8_t _En; // LCD expander word for enable pin
201 uint8_t _Rw; // LCD expander word for R/W pin
202 uint8_t _Rs; // LCD expander word for Register Select pin
203 uint8_t _data_pins[4]; // LCD data lines
204
205 };
206
207 #endif
LCD
Definition: LCD.h:187
LiquidCrystal_SI2C::begin
virtual void begin(uint8_t cols, uint8_t rows, uint8_t charsize=LCD_5x8DOTS)
Definition: LiquidCrystal_SI2C.cpp:147
LiquidCrystal_SI2C
Definition: LiquidCrystal_SI2C.h:41
LiquidCrystal_SI2C::LiquidCrystal_SI2C
LiquidCrystal_SI2C(uint8_t lcd_Addr)
Definition: LiquidCrystal_SI2C.cpp:99
SI2CIO
Definition: SI2CIO.h:42
LiquidCrystal_SI2C::setBacklight
void setBacklight(uint8_t value)
Definition: LiquidCrystal_SI2C.cpp:170
LiquidCrystal_SI2C::setBacklightPin
void setBacklightPin(uint8_t value, t_backlighPol pol)
Definition: LiquidCrystal_SI2C.cpp:161
LiquidCrystal_SI2C::send
virtual void send(uint8_t value, uint8_t mode)
Definition: LiquidCrystal_SI2C.cpp:243